Buffing wheel



W. S. THOMAS BUFFING WHEEL Nov. 23,1937.

2 Sheets-Sheet 1 Filed July 20, 1937 remittance 2a i937? MNE'FEE fiTATES PATENT OFFICE 3 Claims.

My invention relates to a bufling wheel and one of the objects of the invention is to provide means for ventilating the wheel that it may not become excessively heated thereby causing the 3 fabric to scorch or burn due to the high speed at which it rotates.

A further object is to provide a bufling wheel,

relatively inexpensive in construction,-which may" be of any required width, the bufiing-fabric being 30 spirally wound upon a helically coiled wire,the

respective convolutions of the fabric being spaced apart near the core for the circulation of air,-

the fabric at the perimeter of the wheel presenting a uniformly compact, dense surface for contact with the surface to be buffed.

A further object of the inventionis to provide means whereby the convolutions of the wire on which the buffing fabric is mounted, are securely held against deformation between end plates 20 mounted on'the driving spindle, the respective convolutions of wire being formed with whorls or volutes spaced apart circumferentially, but in axial alignment with like whorls formed respectively in each adjacent convolution of wire, to 25 receive a plurality of rods coaxially disposed in relation to the driving spindle of the bufling wheel, the ends of the respective rods being supported and held against dislodgement by end plates mounted on the spindle at each side of the buffing wheel.

Other objects of the invention and improvements in construction will be hereafter described and shown in the drawings.

In the drawings accompanying the specifica- 35 tions:

Figure 1 is a sectional levation of the bufling wheel, taken on or about line l-I, of Figure 4.

Figure 2 is a diagrammatic elevation of the helically coiled wire and respective end p1ates,--

40 connected together through the coiled wire by a plurality of coaxially disposed rods, fitted with adjustable nuts.

Figure 3 is a detail cross-sectional view through the bufllng fabric, as looped aroundthe wire-coil,

415 taken on or about line. 3-3, of Figure 1.

it is mounted, taken on or about line 55, of Figure 3a, showing the pleated fabric forming the buffing wheel. I

Figure 6 is a diagrammatic perspective view of the wire-coil and the respectively aligned whorls 5 of each convolution of wire, the bufling-fabric being supported on the wire;and through the whorls of the wire-coil extend coaxially aligned rods, shown in broken lines, a fragment of the buffing-fabric being shown secured to the wire 10 coil.

Figure 7 is a modification of the wire-coil, showing a linking member secured to the coil, adapted to receive the coaxially aligned rods supported by the end plates.

Referring now to the reference characters on the drawings:

Numeral I, denotes the driving spindle, 2 -2 indicate end plates mounted on the spindle, between which is a continuous strip 3, comprising a plurality of pleated layers of'fabric, looped in U-shaped form in cross-section,--upon a helically coiled supporting wire 4, encircling the driving spindle between the end plates 22, mounted thereon.

The respective convolutions of the wire coil 4, are provided with a plurality of inwardly pro jecting whorls 5, aligned with like whorls on each adjacent convolution of the wire, to receive a plurality of coaxially disposed rods 6, extending through the aligned whorls of the respective convolutions of the helically coiled wire 4. The rods 6, are supported at their ends in the end plates 2-2. The rods 6, are fitted with adjusting nuts I, that the end platesmay be drawn toward each other to grip the helically coiled fabric adjacent to the core of the bufling wheel. The end plates 2-2 are preferably provided'with a hub portion 2a, the abutting ends of the hub being respectively formed with a notch 2b, and an interlock- 40 ing tongue 2c, shown in dotted lines in Figure 4.

It will be obvious that air will freely circulate through the openings 3a, in the bufling-fabric,-

see Figure 4,-p'rovided for the passage of the inwardly extending whorls of the helical coil or supporting wire, and also through the pleated layers of fabric as clearly disclosed in Figure 5, and Figure 3a,a circulation of air, is thus provided materially adding to the longevity or life of the bufling wheel.

It has been proven by numerous tests thatthe bufllng-fabric of the present invention remains cool and unscorched, while other bumng wheels mounted on the same shaft and running atfthe same speed and under like conditions, in contact 5 with like work, become heated to such an extent that the fabric was soon scorched and lost its stamina and vitality.

In the modification shown in Figure l, a linking member 8, is secured to the coil, to receive said means to receive a plurality of rods axiallyaligned with the spindle; a plurality of rods extending through the said rod-receiving means of the helically coiled wire; and-a continuous helically-wound buffing fabric, supported by said helically coiled wire.

2. A ventilated buffing wheel comprising a spindle; means on said spindle spaced apart to receive and support an annular buffing wheel; a v

helically coiled wire, having a plurality of relatively small whorls, spaced apart and respectively adapted to register with other of said whorls to receive a plurality of rods axially aligned with the supporting spindle; a plurality of rods extending through the respective registering whorls of the helically coiled wire; and a continuous helically wound bufiing-fabric supported by said helically coiled wire, having convolutions spaced for the passage of air, whereby air for cooling and ventilating said hurling-fabric may pass between the convolutions of the buffing-fabric.

3. A ventilated buffing wheel comprising a spindle; means mounted on said spindle to receive and support an annular buifiing-wheel; a helically coiled member having a plurality of relatively small apertures spaced apart, and respectively adapted to register with other of said apertures; a plurality of rods extending through the aligned apertures of the helically coiled member; and a helically wound bumngfabric, supported by said helically coiled member, having convolutions spaced for the passage of air, whereby air for cooling and ventilating said buffing-fabric may pass between the convolutions of the buflingfabric.

4. A ventilated buffing-wheel comprising a spindle; plates spaced apart on said spindle to receive and support an annular bufing-wheel; a helically coiled wire, having a plurality of means respectively adapted to register with other like 7 means to receive a plurality of rods aligned with hesupportlng spindle; a plurality of rods extending through the said respective registering rod- I pass between the convolutions of the bufiingfabric.

'5. A ventilated bufling wheel comprising a spindle; plates spaced apart on said spindle to receive an annular bufling wheel; a helically coiled member having a plurality of means spaced apart and respectively adapted to register with other like means to receive apiurality of rods; a plurality of rods extending throughthe respective registering rod receiving means of the helically coiled member; and a continuous helically wound buffing fabric supported bysaid helically coiled member, whereby air for cooling and ventilating the bufling fabric may pass between the convolutions of said bufing fabric.

6. A bufling wheel consisting of a helically wound fabric; a helically wound member over which the bumng fabric is folded at its inner periphery; a plurality of supportingmeans for interlocking the convolutions of the helically wound member; and means securing said supporting means to a spindle.

7. A buifdng wheel consisting of an undivided helically wound buffing fabric; a helically wound member to which the undivided convolutions of the helically wound buffing fabric are secured; a plurality of supports for interlocking the convolutions of the helically wound member; and means for securing said supports to a spindle.

8. A buffing wheel comprising a helically wound fabric; a helically wound member adapted tosupport and space the convolutions of the helically wound fabric; and a plurality of aligned supporting elements engaging the convolutions of the helically wound member, wherebyfit is secured against deformation; and means for coupling the supporting elments to a spindle.

WAYNE Sg. THOMAS. 

